Liquid-fuel burner.



W. F. GOODWIN & J. 0. LOW.

LIQUID FUEL BURNER.

APPLIOATION FILED IBB. 17, 1009.

Patented Mar. 29, 1910.

2 SKEETB-BHBET 1.

* Wawdm-w W. P. GOODWIN & J. 0. LOW.

LIQUID FUEL BURNER.

APPLICATION FILED 313.17, 1909. 953,1 36, Patented Mar. 29, 1910.

2 SREETB-SHEET 2.

Summons dwuu.

JOLon v atomize the fuel to a UNITED scrATns PATENT OFFICE.

GOODWIN AND JOSEPH 0. (LOW, 01' SAN FRANOISCCS, CALIFORNIA.

LIQUID-FUEL BURNER.

Specification of Letters Patent; Patented Mar. 29, 1910- Application filed February 17, 1909. Serial No. 478,393.

An object of this invention is the rovision of a burner of this character whic i will greater per cent. than the burners now employed.

Another object of this invention is the provision of a hood which is ositioned in the burner to cause the formation of a vacuum under the action of a fluid admitted thereto underpressure and to thereby cause a suction forthe purpose of furnishing a continuous oil feed within the'burner.

The invention has for a further object the provision of means disposed within the urner forqpreventin any excess of steam from choking the oi feed and to thereby eliminate the disadvantages incident to an unsteady flow of mixture at the tip of the burner.

i A still further object of this invention is the provision of a pluralit of blades for mixin steam or air with oi which are arranged in a peculiar relation and are of special formation in order to deflect the substances projected thereagainst 'and direct themin a tortuous path.

Other objects and advantages will be up parent from the following description, audit will be understood that changes in the specific structure shown and described ma be made Within the scope of the claims wit rout departing from the spirit of the invention.

.In the drawings forming a portion of this specification, and in which like numerals of reference indicate similar parts in the several views, Figure 1 is a side.elevation of the complete burner, Fig. 2 is a rear elevation of the same, Fig. 3 is an end view disclosin the tip, Fi 4 is a longitudinal section t rough the gevice, Fig. 5 is a section on the line 5-5 of Fig. 4, F i 6 is a detailed view of one of the bla es em loyed in connection with .theburner, 1s a section on the line 7w? of Fig. 4,

at San Francisco, in the a section on the line 88 of Fig. 4, Fig. 9 is a sectional detail view of a modified form of burner tip.

Referring now to the drawings, 10 designates a casing ofcylindrical formation ro- .vided at one side with a circular bored 0 set portion 11 threaded for the reception of a ipe 12 through which steam or'air may be introduced into' the casing 10. The casing is provided opposite the portion 11 with a second similar ofi'set portion 13 into which is fitted a pipe 14 for'the pu ose of conveying a liquld fuel into the casing 10. The

offset portion 13 terminates in the outerextremity of a channe1 15 which is formed lon 'tudinally within the casing 10 and exten s to the inner end thereof, where it terminutes in an inner annular flange 16 ex tending forwardly and concentrically within the casing 10. A cylindrical hood 17 ,iS provided withinthe casing 10 and .is pro vided with an inner reduced portion 18 for engagement within the flange 16 in an -suit-' ab e manner as by the provision of t reads thereon. The reduced portion 18 of the hood is provided with a piping 19 which projects forwardly therein and terminates in i a rod 20, the piping 19having op ositely disposed apertures formed thro h t e sides thereof at the base of the hood or the. ur-

aose of admittin oil from the chann The inner end 0 the piping 19 is rovided with an annular beveled face for t e .rece tion of a needle valve21 carried in a three ed sleeve 22 disposed in the inner endof the casing 10. The hood 17 extends practically the entire len th of the casing)- 10, and beyond this hoo a plurality ofpositioned upon the rod 20 in spaced ,relation and held in such position by means of sleeves 24 mounted u on the rod 20 between the blades 23. The b ades and sleeves 24 are held'upon the rod by means of' a clampin nut 25 threaded 'u on the outer extremity o the rod 20. The lades 23 are each formed of a metal disk which is centrally a ertured for the reception of the rod 20 an is rovided with a plurality of radially exten wings 26 which are twisted for the purpose of deflecting the oil and steam at an angle during its assa e from the casing 10 and the hood 1 T he blades 23 are so positioned as to placethe wings 26 of the .adjoinin blades 23 atopposite an les in order to do ect the steam and oil .afternately in .la'des 23 are ST AVFdLiid-BLE easase opposite directions during their passage through the same. The casing 10 is pro vlded at its outer extremity with a tube '27 which surrounds the blades 23 and forms a passageway for the steam and oil while the same is travelingbetwcen the blades 23. The tube 27 is necessarily reduced in diam eter so as to fit closely against the outer edges of the wings 2G to prevent the straight passage of the oil or steam about the blades 23. The outer extremity of the tube- 2'? Sup ports a tip or nozzle for the combustion of the mixture and comprises a tapered channel member 28 which is secured in threaded engagement upon the outer end of the tube 27 and carries atits opposite extremity a cylindrical casing 29 which is p'ositiond at right angles to the channel member 28. The casing 29 is open at its upper extremity, upon which a metal ring 30 is positioned and secured by means of a cap 31 which is held in frictional engagement therewith by means ot a bolt 32extend1ng through the casing 29 and cap 31 vertically and held by clamping nuts 33 positioned against the bottom of the casing 29 and top of the cap 31.

The metal ring 30 is providedwith a pinrality of radially extended slots 34 to admit of the passage of the mixture therethrough for the even combustion of the same. ,The slots may be formed of any desired width orlength and owing to the fact that they are formed in one edge of the ring 30 it is readily seen that. in manufacturing the same a perfect edge can be formed readily about the slot and an .even flow of the mixture will thereby be maintained.

In Fig. 9 of the drawings, the casing 29 is disclosed as .being provided with two metallic rings 35 and 36 similar to the ring 30 but which are spaced apart by means of an annulus 37, the same being held in ri id position by the passage of a bolt 38 vertica lly through the casing 29 and a cap 39 positioned upon the upper extremity of the same. This last construction is utilized when a large flame is desired and a greater amount of fuel is to be em loyed.

The operation 0 the device is as follows: Steam is passed through the pipe 12 into the casing 10 where it circulates about the hood 17. and passes thence into the tube 27 against the blades 24 causing a suction in the interior of the hood 17. When the needlevalve 21 is opened, oil from the pipe 14: is.

drawn into the interior of the hood 17 and is conveyed with the steam against the blades 24:. When the steam and oil strike the first blade 24: they are deflected at an angle and travel at such angle until they are impinged against the second blade when, by reason of the oppositely turned angles of the wings thereof, they are deflected backwardly and are caused to travel insuch direction until the next blade is reached. This action takes place throughout the entire length of the tube 27 during the passage of the steam and oil through the blades 24. It is thus seen that by this action, the steam and the oil are thoroughly mixed and an eliieient atomizer is thereby produced. Th; mixture which results passes from the forward extremity of the tube 27 through the channel member 28 into the casing 29 where'it is passed upwardly therein and caused to How terrupted flame and consequent inefficient operation of the burner. The amount of oil required is regulated by means of the needle valve 21 which is provided in the usual manner. with a hand-engaging nut upon its outer extremity which is positioned upon the inner end of the casing 10 where it can be readily engaged and operated.

I What is claimed is:

1. A burner of the class described comprising a cylindrical casing, a hood concentrically and longitudinally disposed in said casing, a steam inlet pipe disposed in one side of said casing, an oil inlet pipe disposed in said casing and in communication with the inner end of said hood, a needle valve mounted in the inner end of said casing for regulating the oil supply, a supporting member carried in the hood, a plurality of blades disposed in spaced relation upon said supporting member, a tube forwardly extended from said casing about said blades, and a tip secured upon the outer end of said tube.

2. A burner of the class described comprising a casing. a hood mounted in said casing, a steam pipe communicating with said casing, an oil pipe communicating with said hood,.a plurality of blades mounted outwardly of said hood, a tube extended from said casing over said blades and a tip disposed upon the end of said tube. -f

3. A burner of the class described comprising a casing, a steam pipe communicat- 1; 4 120 iug with the casing, a hood disposed in said casing, an oil pipe communicating withith' hood, a plurality of blades disposed at the, end of said hood, 2. tube surroundingsaid. blades and carried by said casing, at tapere d" '125 tube, a cylindrical casing dis osed atright said channelmember, a ring having a plurality of radi-,

channel member carried outwardly of said angles upon the outer end 0 ally extended slots formed there'throu h ositioned upon the upper end of sai est named casing, a cap engaged over said ring posed in spaced relation at the outer end of and a bolt secured through said casing, ring said hood in said tube, said blades being and said 'cap. consecutively disposed at opposite angles 15) 4. A burner comprising a casing, a tube to one another to form a tortuous path for extended forwardly from said casing, a tip. the steam and oil to mix the same.

' mounted upon the extremity of said tube, a In testimony whereof we afiix our signahood disposed in said easing, a team pipe tures, in presence of two Witnesses.

secured in the side of said casing for (11- l WILLIAM F. GOODVVIN. reeting steam about said hood an oil pipe J ObEPH C. LOW. secured in the side of said casing and con- Witnesses:

nected with the interior of said hood to feed J As. R. MCGRURY,

oil thereto, and a plurality of blades dis- A. J. GnIsEz. 

